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Water-retention crack-resistance mortar used for surface of aerated concrete block

A technology of air-entrained concrete and anti-cracking mortar, which is applied in the field of inorganic materials, and can solve problems such as high water absorption rate, excessive water loss of surface cement mortar plastering layer, and defective wall quality

Inactive Publication Date: 2016-12-21
四川蜂巢建筑技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are also defects of high water absorption, which cause the surface cement mortar plastering layer to lose water too quickly, poor strength, pulverization, cracking, etc.
Quality defects appear on the wall

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] A water-retaining and anti-cracking mortar used on the surface of air-entrained concrete blocks, the mass percentage of each raw material component is:

[0095] Ordinary Portland cement: 20%

[0096] Polystyrene particles: 10%

[0097] Gypsum: 50%

[0098] Ground calcium carbonate: 5%

[0099] Calcium Hydroxide: 5%

[0100] Cellulose ether: 1%

[0101] Wood fiber: 5%

[0102] Latex powder: 3.5%

[0103] Polypropylene fiber: 0.5%;

[0104] Wherein the particle diameter of heavy calcium carbonate is 200 orders; The bulk density of polyphenylene particles is 10 kilograms per cubic meter; The content of CaO in calcium hydroxide is 50%; Cellulose ether is methyl hydroxypropyl cellulose; Latex powder is Redispersible acrylic latex powder.

Embodiment 2

[0106] A water-retaining and anti-cracking mortar used on the surface of air-entrained concrete blocks, the mass percentage of each raw material component is:

[0107] Ordinary Portland cement: 14%

[0108] Polystyrene particles: 7.9%

[0109] Gypsum: 65%

[0110] Ground calcium carbonate: 5%

[0111] Calcium Hydroxide: 1%

[0112] Cellulose ether: 1%

[0113] Wood fiber: 5%

[0114] Latex powder: 1%

[0115] Polypropylene fiber: 0.1%;

[0116] Wherein the particle diameter of heavy calcium carbonate is 300 orders; The bulk density of polyphenylene particles is 12 kilograms per cubic meter; The content of CaO in calcium hydroxide is 90%; Cellulose ether is hydroxyethyl methyl cellulose; Latex powder is Redispersible ethylene / vinyl acetate latex powder.

Embodiment 3

[0118] A water-retaining and anti-cracking mortar used on the surface of air-entrained concrete blocks, the mass percentage of each raw material component is:

[0119] Ordinary Portland cement: 35%

[0120] Polystyrene particles: 20%

[0121] Gypsum: 35%

[0122] Ground calcium carbonate: 1%

[0123] Calcium Hydroxide: 5%

[0124] Cellulose ether: 1%

[0125] Wood fiber: 1%

[0126] Latex powder: 1.5%

[0127] Polypropylene fiber: 0.5%;

[0128] Among them, the particle size of heavy calcium carbonate is 250 mesh; the bulk density of polyphenylene particles is 14 kilograms per cubic meter; the content of CaO in calcium hydroxide is 70%; cellulose ether is carboxymethyl cellulose; Dispersed terpolymer rubber powder of ethylene, vinyl chloride and vinyl lauricate.

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PUM

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Abstract

The invention provides a water-retention crack-resistance mortar used for surface of aerated concrete block. The water-retention crack-resistance mortar comprises cement, polyphenyl granules, gypsum, heavy calcium carbonate, calcium hydrate, cellulose ether, wood fiber, latex powder and polypropylene fiber. When the water-retention crack-resistance mortar is used for smearing the surface of the aerated concrete block, the condition that the water absorption rate of the concrete building block is high, so that cracking due to fast dehydration of the mortar and low intensity can be prevented. The water-retention crack-resistance mortar has the advantages of reasonable matching of the components, the components complement each other, the water retention and anticracking effects are good, and the water-retention crack-resistance mortar has good compatibility with the concrete building block. The preparation process is simple, the economic cost is low, and the water-retention crack-resistance mortar has wide market prospect.

Description

technical field [0001] The invention belongs to the technical field of inorganic materials, and in particular relates to a water-retaining and anti-cracking mortar used on the surface of aerated concrete blocks. Background technique [0002] The production principle of aerated concrete blocks is to use siliceous materials, calcareous materials, and in addition, add appropriate amount of regulating materials and a small amount of gas-generating materials. These raw materials are processed, mixed with ingredients, poured into the mold for gas-generating initial setting; Cut and put into the autoclave for curing until it comes out of the autoclave and stacked for loading. Air-entrained concrete block is a new type of building material that is lightweight, porous, thermal insulation, good fire resistance, nailable, sawable, planable, and has certain earthquake resistance. As early as the early 1930s, my country began to produce this product, and it was widely used in high-rise ...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00482C04B16/08C04B14/365C04B14/28C04B22/064C04B24/383C04B16/02C04B24/04C04B16/0633
Inventor 夏广
Owner 四川蜂巢建筑技术有限公司
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